Weather Records on 20 July 1970

890 weather records were set or tied worldwide on 20 July 1970. Highest significance: Manouan Sanmaur, CA.

Key Facts for 20 July 1970

On 20 July 1970, 890 weather records were set or tied at long-record stations worldwide.
120 were record highs and 504 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 25 monthly and 861 daily.
Manouan Sanmaur set an all-time record daily precipitation of 110.5 mm (4.4 in) on 20 July 1970.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 456 records.

Record Map

890 stations

890 station records on 20 July 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Manouan Sanmaur	Canada	Record daily precipitation	110.5 mm (4.4 in)	72 of 100 (Major)
Sandhammaren	Sweden	Record daily precipitation	30.5 mm (1.2 in)	70 of 100 (Major)
Palmares	Brazil	Record daily precipitation	148.0 mm (5.8 in)	64 of 100 (Major)
Vitoria de Santo Antao	Brazil	Record daily precipitation	54.8 mm (2.2 in)	54 of 100 (Notable)
Bloomfield	Canada	Record daily precipitation	72.4 mm (2.9 in)	53 of 100 (Notable)
Garanhuns	Brazil	Record daily precipitation	45.0 mm (1.8 in)	50 of 100 (Notable)
Hoorn	Netherlands	Record daily precipitation	27.2 mm (1.1 in)	50 of 100 (Notable)
Rio Formoso	Brazil	Record daily precipitation	100.1 mm (3.9 in)	48 of 100 (Notable)
Bancroft	Canada	Record daily precipitation	66.0 mm (2.6 in)	48 of 100 (Notable)
Normandin Cda	Canada	Record daily precipitation	72.1 mm (2.8 in)	48 of 100 (Notable)
Varanasi	India	Record daily precipitation	147.0 mm (5.8 in)	47 of 100 (Notable)
Parry Sound	Canada	Record low maximum temperature	14.4 C (57.9 F)	45 of 100 (Notable)
Lagoa da Canoa	Brazil	Record daily precipitation	32.4 mm (1.3 in)	43 of 100 (Notable)
Elgin Water	United States	Record daily precipitation	32.5 mm (1.3 in)	43 of 100 (Notable)
Alagoa Nova (Laranjeiras)	Brazil	Record daily precipitation	86.4 mm (3.4 in)	42 of 100 (Notable)
Brejo da Madre de Deus	Brazil	Record daily precipitation	50.0 mm (2.0 in)	41 of 100 (Notable)
Durham	Canada	Record low maximum temperature	14.4 C (57.9 F)	41 of 100 (Notable)
Franklin Sewage Plt	United States	Record daily precipitation	47.2 mm (1.9 in)	41 of 100 (Notable)
Bederkesa	Germany	Record daily precipitation	33.3 mm (1.3 in)	40 of 100 (Notable)
Killaloe	Canada	Record daily precipitation	58.4 mm (2.3 in)	39 of 100 (Notable)
Kislovodsk	Russia	Record daily precipitation	32.4 mm (1.3 in)	39 of 100 (Notable)
Shelbyville Sewage Plt	United States	Record low maximum temperature	20.0 C (68.0 F)	39 of 100 (Notable)
Parry Sound	Canada	Record daily precipitation	36.3 mm (1.4 in)	38 of 100 (Notable)
Maniwaki 2	Canada	Record daily precipitation	56.6 mm (2.2 in)	38 of 100 (Notable)
Rotenburg (Wumme)	Germany	Record daily precipitation	32.6 mm (1.3 in)	38 of 100 (Notable)
Ft Collins	United States	Record daily precipitation	28.4 mm (1.1 in)	38 of 100 (Notable)
Kokomo 3 WSW	United States	Record low maximum temperature	18.3 C (64.9 F)	38 of 100 (Notable)
Leitchfield 2 N	United States	Record low maximum temperature	21.7 C (71.1 F)	38 of 100 (Notable)
Taloga	United States	Record low minimum temperature	10.6 C (51.1 F)	38 of 100 (Notable)
Lexington Bluegrass AP	United States	Record low maximum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
North Bay	Canada	Record low maximum temperature	12.8 C (55.0 F)	37 of 100 (Notable)
Tobermory	Canada	Record daily precipitation	38.1 mm (1.5 in)	37 of 100 (Notable)
Albanel	Canada	Record daily precipitation	64.8 mm (2.6 in)	37 of 100 (Notable)
Konigsmoor	Germany	Record daily precipitation	35.8 mm (1.4 in)	37 of 100 (Notable)
Kalimpong Obsy Sr	India	Record daily precipitation	199.0 mm (7.8 in)	37 of 100 (Notable)
Coldwater	United States	Record low minimum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
Lindsay	Canada	Record daily precipitation	41.7 mm (1.6 in)	36 of 100 (Notable)
Crescent City 3 NNW	United States	Record low maximum temperature	12.2 C (54.0 F)	36 of 100 (Notable)
Montevideo 1SW	United States	Record low minimum temperature	6.7 C (44.1 F)	36 of 100 (Notable)
Kemptville	Canada	Record daily precipitation	45.5 mm (1.8 in)	35 of 100 (Notable)
Leamington	Canada	Record low maximum temperature	16.1 C (61.0 F)	35 of 100 (Notable)
Put-In-Bay	United States	Record daily precipitation	53.8 mm (2.1 in)	35 of 100 (Notable)
Gravata	Brazil	Record daily precipitation	40.0 mm (1.6 in)	34 of 100 (Routine)
Montebello Seigniory	Canada	Record daily precipitation	57.2 mm (2.3 in)	34 of 100 (Routine)
Bagaha	India	Record daily precipitation	168.0 mm (6.6 in)	34 of 100 (Routine)
Naubatpur	India	Record daily precipitation	95.0 mm (3.7 in)	34 of 100 (Routine)
Newport	United States	Record low minimum temperature	5.0 C (41.0 F)	34 of 100 (Routine)
Ponca City	United States	Record low minimum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Chanute Martin Johnson AP	United States	Record low minimum temperature	11.1 C (52.0 F)	34 of 100 (Routine)
Perth Regional Office	Australia	Record high maximum temperature	22.8 C (73.0 F)	33 of 100 (Routine)
Arvida	Canada	Record daily precipitation	40.9 mm (1.6 in)	33 of 100 (Routine)
Lensahn	Germany	Record daily precipitation	29.1 mm (1.1 in)	33 of 100 (Routine)
Ft Lupton 2 SE	United States	Record daily precipitation	31.8 mm (1.3 in)	33 of 100 (Routine)
Dublin	United States	Record low minimum temperature	16.1 C (61.0 F)	33 of 100 (Routine)
Rock Rapids	United States	Record low maximum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Liberal	United States	Record low minimum temperature	10.6 C (51.1 F)	33 of 100 (Routine)
Bay City	United States	Record low maximum temperature	16.7 C (62.1 F)	33 of 100 (Routine)
Bloomingdale	United States	Record daily precipitation	31.2 mm (1.2 in)	33 of 100 (Routine)
Albion	United States	Record low maximum temperature	21.1 C (70.0 F)	33 of 100 (Routine)
Cimarron 4 SW	United States	Record daily precipitation	30.0 mm (1.2 in)	33 of 100 (Routine)

Counts by Type and Timescale

890 records

Records set or tied on 20 July 1970 by type: Highest daily maximum 50, Lowest daily maximum 217, Highest daily minimum 70, Lowest daily minimum 287, Heaviest daily rainfall 266.

Records on 20 July 1970 by type
Record type	Records
Highest daily maximum	50
Lowest daily maximum	217
Highest daily minimum	70
Lowest daily minimum	287
Heaviest daily rainfall	266
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 1970 by timescale: all-time 4, monthly 25, daily 861.

How Much Records Were Beaten By

691 broken records

Margins by which the 691 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 83.0. Ties are not counted.

Top 20 by Significance

20 July 1970

Top 20 records on 20 July 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1970	Manouan Sanmaur, CA	all-time rain	110.5 mm (4.4 in)	45.5 mm (1.8 in)	23 years	72 of 100 (Major)
20 July 1970	Sandhammaren, SE	daily rain	30.5 mm (1.2 in)	24.3 mm (1.0 in)	79 years	70 of 100 (Major)
20 July 1970	Palmares, BR	monthly rain	148.0 mm (5.8 in)	67.1 mm (2.6 in)	30 years	64 of 100 (Major)
20 July 1970	Vitoria de Santo Antao, BR	daily rain	54.8 mm (2.2 in)	36.6 mm (1.4 in)	31 years	54 of 100 (Notable)
20 July 1970	Bloomfield, CA	daily rain	72.4 mm (2.9 in)	30.0 mm (1.2 in)	57 years	53 of 100 (Notable)
20 July 1970	Garanhuns, BR	daily rain	45.0 mm (1.8 in)	32.2 mm (1.3 in)	19 years	50 of 100 (Notable)
20 July 1970	Hoorn, NL	daily rain	27.2 mm (1.1 in)	15.3 mm (0.6 in)	60 years	50 of 100 (Notable)
20 July 1970	Rio Formoso, BR	daily rain	100.1 mm (3.9 in)	49.6 mm (2.0 in)	28 years	48 of 100 (Notable)
20 July 1970	Bancroft, CA	daily rain	66.0 mm (2.6 in)	31.7 mm (1.2 in)	39 years	48 of 100 (Notable)
20 July 1970	Normandin Cda, CA	all-time rain	72.1 mm (2.8 in)	12.9 mm (0.5 in)	33 years	48 of 100 (Notable)
20 July 1970	Varanasi, IN	daily rain	147.0 mm (5.8 in)	83.0 mm (3.3 in)	25 years	47 of 100 (Notable)
20 July 1970	Parry Sound, CA	daily low max	14.4 C (57.9 F)	3.4 C (6.1 F)	92 years	45 of 100 (Notable)
20 July 1970	Lagoa da Canoa, BR	daily rain	32.4 mm (1.3 in)	17.2 mm (0.7 in)	48 years	43 of 100 (Notable)
20 July 1970	Elgin Water, US	daily rain	32.5 mm (1.3 in)	21.6 mm (0.9 in)	71 years	43 of 100 (Notable)
20 July 1970	Alagoa Nova (Laranjeiras), BR	daily rain	86.4 mm (3.4 in)	55.8 mm (2.2 in)	0 years	42 of 100 (Notable)
20 July 1970	Brejo da Madre de Deus, BR	daily rain	50.0 mm (2.0 in)	31.4 mm (1.2 in)	0 years	41 of 100 (Notable)
20 July 1970	Durham, CA	daily low max	14.4 C (57.9 F)	3.9 C (7.0 F)	80 years	41 of 100 (Notable)
20 July 1970	Franklin Sewage Plt, US	daily rain	47.2 mm (1.9 in)	26.9 mm (1.1 in)	48 years	41 of 100 (Notable)
20 July 1970	Bederkesa, DE	daily rain	33.3 mm (1.3 in)	12.3 mm (0.5 in)	55 years	40 of 100 (Notable)
20 July 1970	Killaloe, CA	monthly rain	58.4 mm (2.3 in)	16.5 mm (0.6 in)	22 years	39 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1809 to 1970

Records set or tied on this calendar date in each year from 1809 to 1970. 1970 had 890 records.

Counts for years before the ledger starts come from the same station rules.

Records on 07-20 in each year
Year	Records
1809	1
1810	1
1811	2
1832	2
1844	2
1850	1
1859	2
1863	1
1865	4
1866	1
1867	1
1868	1
1870	1
1872	1
1874	2
1876	1
1877	2
1879	3
1880	1
1881	2
1882	1
1883	2
1885	1
1886	2
1887	1
1888	1
1889	2
1890	5
1892	7
1893	1
1894	1
1895	1
1897	4
1898	2
1899	4
1900	9
1901	3
1902	13
1903	6
1904	10
1905	6
1906	8
1907	12
1908	31
1909	6
1910	27
1911	12
1912	33
1913	28
1914	20
1915	163
1916	117
1917	57
1918	53
1919	40
1920	16
1921	55
1922	52
1923	173
1924	112
1925	125
1926	411
1927	106
1928	366
1929	480
1930	598
1931	362
1932	338
1933	201
1934	857
1935	386
1936	358
1937	213
1938	392
1939	336
1940	325
1941	270
1942	609
1943	326
1944	470
1945	278
1946	482
1947	635
1948	385
1949	807
1950	563
1951	448
1952	488
1953	316
1954	512
1955	377
1956	545
1957	351
1958	536
1959	605
1960	758
1961	338
1962	327
1963	457
1964	416
1965	1,110
1966	469
1967	455
1968	389
1969	649
1970	890
1971	619
1972	1,062
1973	804
1974	489
1975	470
1976	580
1977	899
1978	663
1979	1,249
1980	925
1981	1,048
1982	580
1983	1,117
1984	799
1985	604
1986	848
1987	1,156
1988	1,103
1989	1,183
1990	724
1991	1,024
1992	1,137
1993	901
1994	611
1995	961
1996	1,365
1997	903
1998	1,682
1999	815
2000	1,393
2001	755
2002	986
2003	1,313
2004	978
2005	1,266
2006	1,487
2007	1,124
2008	663
2009	1,533
2010	1,154
2011	1,339
2012	817
2013	850
2014	1,000
2015	812
2016	744
2017	398
2018	930
2019	867
2020	524
2021	683
2022	1,108
2023	812
2024	737
2025	680
2026	863

Download the Data

Data for records on 1970-07-20: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 20	654
20 to 40	30
40 to 60	3
60 to 80	3
80 to 100	1